/*
 * Type-safe wrapper for WebGL in GWT.
 * 
 * Copyright (C) 2009 Hao Nguyen
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package gwt.g3d.resources.client;

import gwt.g3d.client.gl2.GL2;
import gwt.g3d.client.texture.Texture2D;

import com.google.gwt.dom.client.ImageElement;
import com.google.gwt.resources.client.ResourcePrototype;

/**
 * Represents a resource that creates a {@link Texture2D} from an image.
 * This should only be used as part of {@link ExternalTexture2DResource}.
 * 
 * @author hao1300@gmail.com
 */
public interface Texture2DResource extends ResourcePrototype {

  /**
   * Creates a {@link Texture2D} based on the resource description.
   * 
   * @param gl
   */
  Texture2D createTexture(GL2 gl);
  
  /**
   * Gets the underlying {@link ImageElement}.
   */
  ImageElement getImage();
}
